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    PLATINUM/CARBON NANOTUBE CATALYST, THE PREPARATION PROCESS AND USE THEREOF
    4.
    发明申请
    PLATINUM/CARBON NANOTUBE CATALYST, THE PREPARATION PROCESS AND USE THEREOF 有权
    铂/碳纳米管催化剂，其制备方法及其用途

    公开(公告)号：US20120035388A1

    公开(公告)日：2012-02-09

    申请号：US13201233

    申请日：2010-05-11

    申请人： Can Li ,  Zhijian Chen

    发明人： Can Li ,  Zhijian Chen

    IPC分类号： C07C67/30 ,  B01J23/42 ,  B01J37/34 ,  B82Y40/00 ,  B82Y30/00

    CPC分类号： B01J23/42 ,  B01J21/185 ,  B01J35/0013 ,  B01J37/009 ,  B01J37/0201 ,  B01J37/16 ,  B01J37/343 ,  B82Y30/00 ,  C07B35/02 ,  C07C67/30

    摘要： This invention provides a platinum/carbon nanotube catalyst applicable to heterogeneous asymmetric hydrogenation, which is fabricated by supporting platinum on carbon nanotube carriers. The catalyst is prepared by the steps of: heating purified carbon nanotubes in nitric acid, filtering and washing the same with water until pH value of the filtrate becomes neutral, drying the carbon nanotubes; immersing the carbon nanotube carriers obtained in an aqueous chloroplatinic acid solution and carrying out ultrasonic treatment at room temperature; immersing the mixture of the carbon nanotubes and the aqueous chloroplatinic acid solution under stirring; drying the material by heating to 110° C. from room temperature and maintaining this temperature; grinding the product to fine powders, reducing the fine powders with an aqueous sodium formate solution under a heating condition, filtering and washing the product with deionized water, and drying the product. The invention further provides a process for preparing a platinum/carbon nanotube catalyst and a use thereof in heterogeneous asymmetric hydrogenation.

    摘要翻译： 本发明提供了适用于异相不对称氢化的铂/碳纳米管催化剂，其通过在碳纳米管载体上负载铂制备。 通过以下步骤制备催化剂：将纯化的碳纳米管在硝酸中加热，用水过滤并洗涤直至滤液的pH值变为中性，干燥碳纳米管; 将得到的碳纳米管载体浸入氯铂酸水溶液中并在室温下进行超声处理; 在搅拌下浸渍碳纳米管和氯铂酸水溶液的混合物; 通过从室温加热至110℃并保持该温度来干燥材料; 将产品研磨成细粉末，在加热条件下用甲酸钠水溶液还原细粉末，用去离子水过滤和洗涤产物，并干燥产物。 本发明还提供了一种制备铂/碳纳米管催化剂的方法及其在非均相不对称氢化中的用途。

    Platinum/carbon nanotube catalyst, the preparation process and use thereof
    5.
    发明授权
    Platinum/carbon nanotube catalyst, the preparation process and use thereof 有权
    铂/碳纳米管催化剂，其制备方法及用途

    公开(公告)号：US09421520B2

    公开(公告)日：2016-08-23

    申请号：US13201233

    申请日：2010-05-11

    申请人： Can Li ,  Zhijian Chen

    发明人： Can Li ,  Zhijian Chen

    IPC分类号： C07C67/30 ,  B01J23/42 ,  B01J37/34 ,  B01J21/18 ,  B01J37/02 ,  B82Y30/00 ,  C07B35/02 ,  B01J35/00 ,  B01J37/00 ,  B01J37/16

    CPC分类号： B01J23/42 ,  B01J21/185 ,  B01J35/0013 ,  B01J37/009 ,  B01J37/0201 ,  B01J37/16 ,  B01J37/343 ,  B82Y30/00 ,  C07B35/02 ,  C07C67/30

    摘要： This invention provides a platinum/carbon nanotube catalyst applicable to heterogeneous asymmetric hydrogenation, which is fabricated by supporting platinum on carbon nanotube carriers. The catalyst is prepared by the steps of: heating purified carbon nanotubes in nitric acid, filtering and washing the same with water until pH value of the filtrate becomes neutral, drying the carbon nanotubes; immersing the carbon nanotube carriers obtained in an aqueous chloroplatinic acid solution and carrying out ultrasonic treatment at room temperature; immersing the mixture of the carbon nanotubes and the aqueous chloroplatinic acid solution under stirring; drying the material by heating to 110° C. from room temperature and maintaining this temperature; grinding the product to fine powders, reducing the fine powders with an aqueous sodium formate solution under a heating condition, filtering and washing the product with deionized water, and drying the product. The invention further provides a process for preparing a platinum/carbon nanotube catalyst and a use thereof in heterogeneous asymmetric hydrogenation.

    摘要翻译： 本发明提供了适用于异相不对称氢化的铂/碳纳米管催化剂，其通过在碳纳米管载体上负载铂制备。 通过以下步骤制备催化剂：将纯化的碳纳米管在硝酸中加热，用水过滤并洗涤直到滤液的pH值变为中性，干燥碳纳米管; 将得到的碳纳米管载体浸入氯铂酸水溶液中并在室温下进行超声处理; 在搅拌下浸渍碳纳米管和氯铂酸水溶液的混合物; 通过从室温加热至110℃并保持该温度来干燥材料; 将产品研磨成细粉末，在加热条件下用甲酸钠水溶液还原细粉末，用去离子水过滤和洗涤产物，并干燥产物。 本发明还提供了一种制备铂/碳纳米管催化剂的方法及其在非均相不对称氢化中的用途。